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POSolve Error: Object reference not set to an instance of an object
 

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  1. POSolve Error: Object reference not set to an instance of an object
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    <p>I am getting this eror while uploading a Image file using FileUpload. I am getting this error on button click event to insertion</p> <pre><code> public int InsertData(ProductPhoto prdctphoto) { int ans = 0; SqlCommand cmd = DataConnection.GetConnection().CreateCommand(); cmd.CommandText = "prcProductPhoto"; cmd.CommandType = CommandType.StoredProcedure; // cmd.Parameters.Add(new SqlParameter("@PhotoID", prdctphoto.PhotoID)); cmd.Parameters.Add(new SqlParameter("@PhotoName", prdctphoto.PhotoName)); cmd.Parameters.Add(new SqlParameter("@ExtName", prdctphoto.ExtName)); cmd.Parameters.Add(new SqlParameter("@PhotoType", prdctphoto.PhotoType)); cmd.Parameters.Add(new SqlParameter("@PhotoSize", prdctphoto.PhotoSize)); cmd.Parameters.Add(new SqlParameter("@ProductID", prdctphoto.ProductID)); ans = int.Parse(cmd.ExecuteScalar().ToString()); cmd.Dispose(); DataConnection.CloseConnection(); return ans; } </code></pre> <p>i am getting the error in line </p> <p>ans = int.Parse(cmd.ExecuteScalar().ToString());</p> <p>The code of my Stored Procedure is </p> <pre><code>create proc prcProductPhoto ( @PhotoName Varchar(100), @ExtName Varchar(100), @PhotoType Varchar(100), @PhotoSize int, @ProductID Int ) as insert into ProductPhoto(PhotoName,ExtName,PhotoType,PhotoSize,ProductID) values (@PhotoName,@ExtName,@PhotoType,@PhotoSize,@ProductID) </code></pre> <p>and code on button click event is </p> <pre><code>protected void Insert_Click(object sender, EventArgs e) { try { if (photoupload.HasFile) { ProductPhoto prdctphoto = new ProductPhoto(); prdctphoto.PhotoName = photoupload.FileName; prdctphoto.PhotoSize = photoupload.PostedFile.ContentLength; prdctphoto.PhotoType = photoupload.PostedFile.ContentType; prdctphoto.ExtName = prdctphoto.PhotoName.Substring(prdctphoto.PhotoName.LastIndexOf(".") + 1); prdctphoto.ProductID = int.Parse(ddlproductname.SelectedValue); //Response.Write(data.ExtName); int ans = new InsertAction().InsertData(prdctphoto); if (ans != 0) { string path = Server.MapPath("~/upload/") + ans.ToString() + "." + prdctphoto.ExtName; photoupload.SaveAs(path); Response.Write(" File is Uploaded "); } } } catch (Exception ex) { Response.Write(ex.Message); } } </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USNandni Jain
    1. USNandni Jain
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    2. PO
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      1. PTAnswer
    1. VO
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      1. POSolve Error: Object reference not set to an instance of an object
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. POSolve Error: Object reference not set to an instance of an object
      1. This table or related slice is empty.
      1. VTDownMod
    3. VO
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      1. POSolve Error: Object reference not set to an instance of an object
      1. This table or related slice is empty.
      1. VTUpMod
    1. CODoes your SP definitely return a number?
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      1. POSolve Error: Object reference not set to an instance of an object
      1. USmattytommo
    2. COMy crystall ball is in maintenance today, so can you please show the code for the stored procedure?
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      1. POSolve Error: Object reference not set to an instance of an object
      1. USRenan
    3. COSo you can test the value of the result, re-write the code as this: `var result=cmd.ExecuteScalar(); ans=int.Parse(result.ToString());`, this way you can put a breakpoint on the var result line so you can see the result from the query before you try to shoehorn it into an int.
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      1. POSolve Error: Object reference not set to an instance of an object
      1. USGarrison Neely
 

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